Disk plow



A. C. LINDGREN.

DISK PLOW. APPLICATION FILED IULYZ. 1914.

1,388,962. Paten teuug. 30, 1921.

UNITED STATES PATENT OFFICE.

ALEXUS c. LINDGREN, or cnroneo, ILLINOIS, Assrenon, BY MESNEASSIGNMENTS, r INTERNATIONAL HARVESTER COMPANY, A CORPORATION ornnw'Jnnsny,

DISK PLOW.

Specification of Letters Patent. Patented Aug, 30,

Application filed July 2, 1914. Serial No. 848,537,

To all whom it may concern:

a citizen of the United States, residing at Chicago, in the county ofCook and Stateof Illinois, have invented certain new and usefulImprovements in Disk Plows, of which the following is a full, clear, andexact specification.

My invention relates to disk plows.

It is my object to improve and simplify the construction and operationofa device of this character, and this I accomplish by the employment ofa frame member to detachably receive disk carrying arms, and having arear wheel carrying member adjustable thereon in a fore and aftdirection so that the number of disks on the plow may be vadisk andassociate parts illustrated in Fig. 2. I

The particular form of my invention shown herewith comprises a mainframe bar 10 arranged at anangle to the line-of draft; a front furrowwheel '11; a rearframe member 12 detachably connected to the main framebar andhaving a land wheel 13 and a rear furrow wheel 14 attachedthereto; draft connections 15, and a series of disks 16 carried uponarms diverging fromthe frame members.

The main frame bar 10 is preferably formed of I-beam cross-section, andat intervals thereon angle plates 17 are .detachably connected. beneaththe beam by means of bolts 18 which pass through the web, the edges ofthe plates extending over the flanges ofthe beam. Each of these angleplates receives a diskcarrying arm 19, which is detachably connectedthereto by a bolt 20 and one of the bolts 18. The disk carrying armsreferred to are also of I-beam construction,'an d project a shortdistance in the same direction from the main frame bar.

' Near the outer end of each, a detachable Be it known that I, ALEXUS C.LINDGREN,

ferred to, comprises a central, practically fiat, triangular connectingplate 26, which is detachably secured beneath the rear end of the mainframe bar by means of two bolts 27, these boltsbeing spaced the samedistance apart as the bolts 18, so that the said plate 26 may be movedto occupy the posi-v tion of either of the angle plates 17 A beare ing28, adjustably received by bolts 28 is arranged on one side of theplate26 to re-, ceive a shank 29 forthe land wheel 13, and diverging inthe opposite direction is a supporting arm 30, which is detachably connected by means of a bolt 31 and one of each of the bolts 27 and 28 tothe plate 26, and

occupies the same angle with respect to the main frame bar asdo the diskcarrying arms 19. This supporting arm has detachably connected to it ata point in line with the brackets 21 and 25 a similar disk carryingbracket 82, which receives in a rotatable manner the rear one of thedisks 16. On the outer end of the supporting arm 30 there is mounted ina detachable and adjustable manner, by means of bolts 33, a connectingplate 34, which receives in a slidable manner the vertical portion of ashank 35 carrying upper end of the vertical portion of the shank 35, foruse in elevating the adjacent portion of the rear frame member. Mountedalso upon this plate 34 is a second adjusting lever 40 from which thereextends in a forward direction a longitudinally adjustable link member41, having a connection at its forward end with an arm 42 fixed to theupthe frame through the agency of a bracket 45 that is held in place byone of the bolts 27 and one of the bolts 18 in the particular instanceillustrated. A link 46 provided also with a longitudinal adjustmentextends forwardly from this lever and has a connection with a rockingarm 47, which latter when moved will elevate the frame upon the uprightportion of the shank 43 in a well known manner.

It will thus be seen that I have succeeded in arranging all of theadjusting levers in juxtaposition to the drivers seat, and on account ofthe adjustable connections in the forwardly extended links 41 and 46 therear frame member 12 can be coupled more closely than at present shown,without interfering with the operation of the lever 40; and the lever44, owing to its detachable mounting, may be moved forwardly on the mainframe to other positions in order to allow for an advanced position ofthe rear frame member.

- In the arrangement just described, when it is desired to shorten theplow, one or more of the disk carrying arms 19 may be re moved, and therear frame 12, comprising the land wheel, rearfurrow wheel, rear diskand drivers seat, may be shifted forwardly along the main frame bar toone or the other of the positions occupied on that member by the angleplates 19. The construction shown is capable of use with either two,

three or four disks. Obviously, such a frame, by being provided withproperly spaced openings, can be made to receive different sized disks,and otherwise adjusted to conform with varying requirements. On accountof the angle at which the main frame bar 10 is arranged, representingthe line of relative working positions of the disks, and all of thedisks being carried in the rear of the hitch devices 15, it is obviousthat disks may be removed from or added to the frame without interferingwith the evenness of draft of the implement.

It is a distinct advantage in a device of this character to have thepositions of the rear carrying wheels adjustable fore and aft on theframe bar, for in this way when fewer disks are being used, by shiftingthe rear frame 12 forwardly, the weight of the plow will be evenlydistributed, and by having the drivers seat and rear disk unitary withthe supporting wheels, the position occupied by the driver will alwaysbe in close proximity with the working members of the plow, and theadjusting levers being carried on the rear frame member, will at alltimes occupy the same positions relative to the drivers seat, with theexception, of course, of the lever 44; but which, on account of itsdetachable mounting, may be readily and easily moved forward to anotherposition on the main frame bar that will be the same relative distancein advance of the seat.

The construction of my plow is a simple and rugged one, and on accountof the fact that all of the parts may, by the removal of a few bolts, bequickly detached the device can bereadily dismantled for shipping orstoring purposes.

lVhile I have shown and described but one form herein it is,nevertheless, to be understood that this plow is susceptible of othermodifications, and therefore changes may be employed in the differentparts without departing from the spirit of my invention, as disclosed inthe appended claims.

What I claim and desire to secure by Let ters Patent of the UnitedStates is:

1. In a disk plow, a main frame bar, supporting wheels associatedtherewith, angle plates detachably mounted at intervals beneath saidbar, disk carrying arms connected to said angle plates, and a triangularrear plate member detachably secured beneath said frame bar and having aconnection with each rear supporting wheel, and securing means for saidplates which permit substitution of the rear plate for an angle plate.

2. In a disk plow, supporting wheels, a frame bar arranged at an angleto the line of draft, a front plate member to receive the draftconnection, a disk carried by said front plate member, disk carryingarms diverging from said frame bar and detach ably mounted thereon, adisk on each of said carrying arms, a rear plate member detachablysecured on said frame bar, carrying arms for the rear supporting wheelscon nected to said rear plate, and a disk mounted on one of said wheelcarrying arms, said rear plate member being adapted to be movedforwardly on said frame bar to 00- cupy the position of one or the otherof said disk carrying arms.

In a disk'plow, supporting wheels, a main frame bar of I-beamconstruction arranged at an angle to the line of draft, angle platesdetachably mounted at intervals upon said frame bar, disk carrying armsconnected to said angle plates, a disk on each of said arms, and a rearplate member detachably secured to said frame bar, and having aconnection with the rear supporting wheels, said rear plate beingadapted to be moved forwardly to occupy the position of one or the otherof the angle plates.

4. In a disk plow, supporting wheels, a main frame bar formed of I-beammetal arranged at an angle to the line of draft, a front plate memberdetachably mounted on said frame bar, a draft device having a connectionwith said front plate member, a disk carrying arm detachably connectedto said front plate member, angle plates arranged at intervals anddetachably secured on the intermediate portion of said frame bar, diskcarrying arms detachably connected to said angle plates, each having adisk carried near its outer end, and a unitary arrangement at the rearof said frame bar comprising a disk, supporting wheels and a seat, saidunitary arrangement being detachably connected to the frame bar, andadapted to occupy dif ferent positions thereon.

5. In a disk plow, a mainframe bar, a front supporting wheel thereon, arear frame carried by the main bar and adapted for attachment thereto atany one of several positions in its length, a laterally disposed membermounted for horizontal arcuate adjust ment on the rear frame and avertically adjustable rear wheel carried by said member.

6. In a disk plow, a main frame bar, a front supporting wheel thereon, arear frame carried by the main bar and adapted for at tachment theretoat any one of several positions in its length, oppositely disposedmembers mounted for horizontal arcuate adjustment on the rear frame, andsupporting wheels adjustable in bearings on said members.

7 In a disk plow, a main frame, front and rear supporting wheelstherefor, a rear frame member carried on the main frame and capable oflongitudinal adjustment thereon, said rear frame member having attachedto it the rear supporting wheels, adjusting levers for the supportingwheels and for the rear end of the main frame mounted on said rearframe, an adjusting lever detachably received on the main frame andadapted to be moved to different positions thereon, and having alongitudinally adjustable link connection with the forward end of themain frame.

8. The combination of a main frame bar having a horizontal web andvertical flanges, a series of horizontally disposed plates detachablysecured to the web and formed with portions resting on the flanges and aplow carrying arm secured to each plate and ex,-

tending laterally therefrom.

9. The combination of a main frame bar having a horizontal web andvertical flanges, a series of horizontally disposed plates clampedbeneath said web and formed with portions extending over the flanges anda plow carrying arm clamped to each member and extending laterallytherefrom.-

' 10. The combination of a main frame bar, a frame secured to the rearend of the bar and extending on opposite sides thereof, independentlyadjustable bearing members mounted on said frame on each side of the barand a wheel carrying spindle adjustably mounted on each bearing member.

11. In a plow, a main frame, including a diagonal plow carrying member,supporting wheels associated therewith, a plate atthe rear end of thediagonal member, carrying arms on each of which is journaled one of saidsupporting wheels, each arm being 'mounted to swing on said plate in ahorizontal plane, and means for securing said arms in various adjustedpositions.

12. The combination of a straight beam, an angular plate mounted on thebeam with one outer edge parallel with that of the beam and anothertransverse thereto and an implement carrying arm mounted on the plateparallel with its transverse edge.

13. The combination of a straight beam, an angular plate mounted on thebeam with one outer edge parallel with that of the beam and anothertransverse thereto, an implement carrying arm mounted on the plateparallel with its transverse edge, and a securing element passed throughsaid beam, plate and arm.

In testimony whereof I afiiX my signature, in the presence of twowitnesses.

. ALEXUS C. LINDGREN.

Witnesses:

W. W. LOFTUS, H. L. LOOKERT.

